We're dividing 907751 by 4 
The aim is to understand the frequency of 4 in 907751.

Moving on to step 1:
The number 4 fits into 9 2 times, leaving a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 8 away from 9, we end up with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 4

Going ahead to step 2:
The number 4 fits into 10 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 22.0
Deduct 8 from 10 and we're left with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 4

On to step 3:
27 divided by 4 is 6 with a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 226.0
The remainder is 3 after subtracting 24 from 27.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 4

Advancing to step 4:
If we divide 37 by 4, we get 9 and a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 2269.0
If we take 36 away from 37, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 4

Let's proceed to step 5:
If we divide 15 by 4, we get 3 and a remainder of 3.
The next digit of our result is 3. 
Result so far: 22693.0
The remainder is 3 after subtracting 12 from 15.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 4

Moving on to step 6:
4 goes into 31 7 times with a remainder of 3.
The next digit of our result is 7. 
Result so far: 226937.0
Deduct 28 from 31 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
If we divide 30 by 4, we get 7 and a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 226937.7
If we subtract 28 from 30, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
The number 4 fits into 20 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 226937.75
Subtracting 20 from 20 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 226937.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 226937.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 226937.75 and a remainder of 0.0.